Forging-crane.



No. 881,253. .PATENTED MAR. 10, 190s 0. J. MILLER.

PORGING CRANE. APPLIOATION I ILED 1101215 1907.

tion of the various CHARLES J. MILLER, OF CHICAGO, ILLINOIS.

FOR GING-CRANE Specification of Letters Patent.

Patented March 10,1908.

Application filed November 21, 1907. Serial No. 403,182.

T 0 all whom it may concern:

Be it known that I, CHARLES J. MILLER, a citizen of the United States,residing at Chicago, in the county of Cook and State of Illinois, haveinvented certain new and useful Improvements in a Forging-Crane, ofwhich the following is a specification.

This invention relates to improvements in that type of cranes used forhandling heavy pieces of material, and while it is more especiallyintended to be employed for use in the making or forging of billets intocar-axles, yet it is applicable for use for other urposes; and itconsists in certain peculiarities of the construction, novelarrangement, and o eraarts thereof, aswfil be hereinafter more ful .yset forth and specifically claimed.

The principal object of the invention is to furnish a horizontal andvertical movement of the suspended load orbillet whereby it may bemanipulated and formed into the desired shape.

Another object of the invention is to provide a crane of the above-namedcharacter, which shall be simple and inexpensive in construction,strong, durable and effective in operation.

In order to enable others skilled in the art to which my inventionpertains, to make and use the same, I .will now proceed to describe it,referring to the accompanying drawing, in which- Y Figure 1 is a view inside elevation of a crane embodying my invention; Fig. 2 is a plancross-sectional view taken on line 2-2 of Fig. 1 Fig. 3 is an enlargedsectional view of a portion of the screw-shaft and gearing used forvertically adjusting the load supportingarm of the crane; and plan viewpartly in section of the cross-head and adjustable upright.

Like numerals of reference, refer to corresponding parts throughout thedifierent views of the drawing.

The reference numeral-10 designates an upright post or standard which 1spreferably com osed of two channeled pieces 11 of iron whic havetheirchannels resented inwardly so that the edges of their anges will meet toform substantially a rectangular 'figure in cross-section. The pieces 11comprising the post 10 may be secured together in any suitable mannerand have at their upper and lower ends pivots 12 to fit in suitablesockets in supporting-pieces 13 in order that the ma- Fig. 4 is a topchine may be turned to any desired position. Secured to the lowerportion of thesides of the post and extending laterally in arallelismtherefrom are brace-plates 14 w ich are secured. at their other ends toupright channel-irons 15 which are spaced apart as shown in Fig. 2 andpreferably have their channels presented outwardly. Secured'to the sidesof the upper portion of the post 10 andextending horizontally and inparallelism with one another therefrom are two arms or plates 17 whichare spaced apart and are secured at their outer ends to the u perportions of the channel-irons 15 whic may be secured together in anysuitable manner.

Movably and vertically located between the lates 14 and the plates orarms 17 is an eyeearn 18 which has secured thereto at about its middle ahorizontally extending supporting-arm 19 which is preferably in theshape of an eye-beam. The supporting-arm I 19 has its outer end beveledand a portion of the screw which raises and lowers the up right 18 andthe supporting-arm 19 which it carries. The upper surface of the block24 is provided with a race 25 in which are located anti-friction balls26 on which the base of the screw 27 will rest, thus affordingball-bearings for the same. Mounted on the lower portion of the screw 27is a beveled gear 28 which meshes with a beveled gear 30 mounted on acrank-shaft 31 which is journaled between the channel pieces 15 as willbe readily understood hy reference to Figs. 1 and 2 of the drawing.Secured to the upright 18 at a suitable point below the supporting-arm19 is a box-like bracket 32 which is apertured in its lower portion topermit of the free passage of the screw 27, and has rigidly connected toits lower portion a nut 33 which engages the screw. Secured at one ofits ends to the outer portion of the bracket 32 is one end of a brace34, the upper end of which is secured to the lower surface of the arm 19as at 35.

Mounted on the upper surface of the arm 19 is a truck 36 of the ordinaryor any preferred construction which has depending therefrom a yoke 37which embraces the arm 19 and carries on its lower portion a swiveledlink 38 to the lower part of which is swiveled a hanger 39 on which is journaled a pulley 40 over which is passed a chain 41 to support thebillet 42 or axle. Mounted on the rear portion of the upper end of theupright 18 is a. cross-head 43 to which is secured at one of their end-stie-rods 44 the other ends of which are secured to. the bracket 22 onthe supporting-arni.

From the foregoing andsby reference to the drawing it will be clearlyseen and; readily understood that as the main or supporting- ,ost 10; ispivotally mounted at its upper and ower end-s it can be readily turnedso as to give horizontal movement to the arm 19' and through it to thebillet or load, and that said arm can be vertically adjusted by turningthe crank 31 in the proper direction which will cause the upright 18 tomove up or down, which operation opposite portions thereof will impingeagainst the rollers 45, one of which is journaled between the plates 1.4and; the other the plates 17 at the upper portion of the apparatus.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters-Patent, is

1. The combination with a pivotally mounted vertical post, of laterallyextending arms or projections secured. thereto near its upper and lowerends, an upright comprising two spaced-apart pieces secured to the outerends of said projections, a vertically movable upright extended betweenthe projections at the upper and lower ends of the post and locatedbetween the post and the upright at the outer ends of said projections,a loadsupporting-arm secured at one of its ends to about the middle ofthe movable upright and secured to the movable upright below thesupporting-arm and havmg on its lower portion a screw-threaded nut fixedthereto, a

, screw vertically mounted on the lower projections of the post andextended through said nut and into the bracket, a beveled gear on thelower portion of the screw, a crankshaft j ournaled near the screw, anda. beveled gear on the crank-shaft to engage the gear on the screw.

2. The combination with a pivotally mounted vertical post, of a pair oflaterally extending arms or projections secured thereto near its upperand. lower ends and spaced apart, an upright comprising two spacedapartpieces secured to the outer ends of said projections, a verticallymovable upright extended between the projections at the upper and lowerends of the post and located between the post and the upright at theouter ends of said projections, a roller journaled on the upperprojections in front of the movable upright, a roller journaled on thelower projections at the rear of-the movable upright, aload-supporting-arm secured at one of its ends to about the middle ofthe movable upright and having its other end cmlnected to the upperportion of said upright, a bracket secured to the movable upright belowthe supporting-arm and having on its lower portion. a screw-threaded nutlixed thereto, a block mounted on the upper portion of the lowerprojections and having on its upper surface a race, anti-friction ballslocated in said race, a screw provided with a base to rest on the saidballs and extended upwardly through the nut on the bracket, a beveledgear on the lower portion of the screw, a crank-shaft journaled near thescrew, and a beveled gear on the crank-shaft to engage the gear on thescrew.

CHARLES J. Mll .l Ell. Witnesses:

CHAS. C. TILLMAN, M. A. NYMAN.

